Returns URL for the top level of the NST Pro subscription page.

This macro echos out the URL which user's can go to in order to subscribe to the NST Pro service.

Example of using the macro:

@link("@nstproUrl()")

Assuming the com.ccg.macros.at.All class is within your CLASSPATH and the config/html.at macros file has been generated (Hint: run make atmacros in the wui directory), a developer should be able to run the above example by copy/pasting from below:

[root@probe root]# java com.ccg.macros.at.All <<EOF
@include("config/html.at",,"d")

@link("@nstproUrl()")

EOF

This macro is defined as:

https://www.networksecuritytoolkit.org/nstpro